Edu Coore on Instagram: "Blade making in a factory starts with high-carbon or stainless steel sheets**. First, the steel is **heated and rolled to the correct thickness, then **cut into blade shapes using machines or laser cutters. After that, the blades are ground and sharpened on rotating wheels to form a **razor-sharp edge They are then **heat-treated** (heated and cooled) to make them **hard and durable**, so they don’t bend or break easily. Next, the blades are **polished** for smoothness,

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